{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64483",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.791Z",
        "datePublished": "2026-07-25T08:51:43.851Z",
        "dateUpdated": "2026-08-17T04:56:30.281Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T04:56:30.281Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: firewire: isight: bound the sample count to the packet payload\n\nisight_packet() takes the frame count from the device iso packet and\nchecks it only against the device claimed iso length.\n\n\tcount = be32_to_cpu(payload->sample_count);\n\tif (likely(count <= (length - 16) / 4))\n\t\tisight_samples(isight, payload->samples, count);\n\nlength is the iso header data_length. It can be up to 0xffff. So the\ngate allows a count up to about 16379. isight_samples() then copies\ncount frames out of payload->samples into the PCM DMA buffer.\n\npayload->samples holds only 2 * MAX_FRAMES_PER_PACKET values. The\ndevice multiplexes two samples per frame. A count past\nMAX_FRAMES_PER_PACKET reads past the payload. A count past the buffer\nsize writes past runtime->dma_area. The smallest PCM buffer is larger\nthan MAX_FRAMES_PER_PACKET. Bounding the count to MAX_FRAMES_PER_PACKET\nkeeps both the read and the write in range.\n\nA malicious or faulty Apple iSight on the FireWire bus reaches this\nduring a normal capture.\n\nAdd the MAX_FRAMES_PER_PACKET bound to the gate."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/firewire/isight.c"
                    ],
                    "versions": [
                        {
                            "version": "3a691b28a0ca3cf4d9010c6158318159e0275d2c",
                            "lessThan": "24423e0a9251d348c3f1fb0bb0e61b879e1e976c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a691b28a0ca3cf4d9010c6158318159e0275d2c",
                            "lessThan": "ebbffacda6733dcbcef601b5b523460f8d8b671e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a691b28a0ca3cf4d9010c6158318159e0275d2c",
                            "lessThan": "57e4d9043afc1eaddee8f50d11def6e65415d273",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a691b28a0ca3cf4d9010c6158318159e0275d2c",
                            "lessThan": "3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a691b28a0ca3cf4d9010c6158318159e0275d2c",
                            "lessThan": "31da82b9676c6b112e7c72c7529e6812b919742a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a691b28a0ca3cf4d9010c6158318159e0275d2c",
                            "lessThan": "8e48a29813df8dd71503800b7acf69c12c035045",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a691b28a0ca3cf4d9010c6158318159e0275d2c",
                            "lessThan": "31a01b70bb90e3ef3147f308e2ea899e1d2485ca",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a691b28a0ca3cf4d9010c6158318159e0275d2c",
                            "lessThan": "29b9667982e4df2ed7744f86b1144f8bb58eb698",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/firewire/isight.c"
                    ],
                    "versions": [
                        {
                            "version": "3.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.96",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.39",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.4",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.0",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.0",
                                    "versionEndExcluding": "5.15.212"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.0",
                                    "versionEndExcluding": "6.1.178"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.0",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.0",
                                    "versionEndExcluding": "6.12.96"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.0",
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                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.0",
                                    "versionEndExcluding": "7.1.4"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.0",
                                    "versionEndExcluding": "7.2"
                                }
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                        }
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/24423e0a9251d348c3f1fb0bb0e61b879e1e976c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ebbffacda6733dcbcef601b5b523460f8d8b671e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/57e4d9043afc1eaddee8f50d11def6e65415d273"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478"
                },
                {
                    "url": "https://git.kernel.org/stable/c/31da82b9676c6b112e7c72c7529e6812b919742a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8e48a29813df8dd71503800b7acf69c12c035045"
                },
                {
                    "url": "https://git.kernel.org/stable/c/31a01b70bb90e3ef3147f308e2ea899e1d2485ca"
                },
                {
                    "url": "https://git.kernel.org/stable/c/29b9667982e4df2ed7744f86b1144f8bb58eb698"
                }
            ],
            "title": "ALSA: firewire: isight: bound the sample count to the packet payload",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}